Direction-indicating device especially for vehicles



April '5, 1927. 1,623,880

A. MARlK DIRECTION INDICATING DEVICE ESPECIALLY FOR VEHICLES wFiled'April 22, 1926 of construction the disturbances and failures.

Patented Apr. 5, 1%27.

nUGUs'rIN 'MARiK, 02E PRAGUE, KCZECI-IOSLOVAKIA.

-DIREO'DIONJNDICATING 'DEVIGE ESPECIALLY iFOR WEI-1"IGLIES.

.Application?file'dfApril 22,1926, Serial No. 103,932, and inCzechoslovakia Apri1'19,11925.

:For indicating :the direction of vehicles zit has been proposed to usearrow shaped :images which are formed by an aperture inia- \wall or thelikeand are provided with points in yboth directions. In sucharrangements thearrow point which it is desired to show the direction tolbe taken is made .prominent either by means of-a fillingpiece ipushedbehind the other-arrow point-or by :transparent illumination of thespecific ;a-rrow point. According ltO :another mode arrows "are;-assembled from mechanical elements. The first arira'ngement does :notinsure the rapid and accurate:understanding of the given indication,especially by day-lighhwhen the-arrow point, which it is desired to makeapparent differs onlyaslightlyifrom thezremainingone,

while the second construction :readily gives rise, after a certain wearhas occurred, to

The presentiinvention :relates to direction indicating .devices, inwhich the..-arrow-like images appear 'in connection with an aperturewhen a .filling piece llS displaced -or rotated and consists in an'unfailing-although wsimple arrangement in which the arrow images areclearly and :rapidly recognizable. According to the invention theaperture has the shape=of a square, lozenge, hexagon or :the like havingone of its :corners directed :to the left-and theiother zcornerito theright; .the ipointof :the arrow, which normally is invisible is formed:only after the ifilling piece has been displaced 'or turned, whenthescontour OfZt-ll'lSfillllIg piece together with that of the apertureform the image of the arrow point.

In the accompanying drawings are represented in a schematic manner someof the many possible modifications of the invention in its substantialfeatures, while the device which operates the apparatus is not shown. Inthese examples an element of the image is cut out in the casing of theapparatus or in another stationary part of the same, while the otherelement of this image is formed by a plate or the like movably mountedin this casing.

In the drawings the same reference characters indicate correspondingparts throughout and; Y

Figures 1 to 3 show front views of asquare casino; construction, theimage element being shown in various positions,

gs. 4 to 6 are similar views showing a ilnodified image -.elementconstruction, .and

Figs. 7 to .9 show front viewsiofv an ihexagonal casing -.construction,.'.the 1-image .ele- .ment being shown in .various positions.

Referring tirstto Figures 51 to 3 a square -.or'lozenge Z) is cutout inthe front iwalliof the square or rhombic casing I an of the apparatusand formsnn-element of the image. Closely behind the front wall ismount-echa square MOI. lozenge c, which is displaceable sideways inbothidirections .andJforms the second image ,element. Under theinfluence .of an\eXternal-eifort, for example operable -.by the driver7shand, the movable iElQHlQIlli' c .of the image isxdisplaced for .example.to the right .in such a manner "that a part-of its contour,.that:isytheleft halfof thiscontour, forms with :a part of the stationary imageelement 6 an arrow ,1 Fig. 1. NVhen .the element 0 .is displaced to theleft -.the lefthand effective lines of .the elements to .and'c formanarrow 2, Fig.3.- Thearrows :appear .for example whiteion a, darkwbasis-'or-, if an illumination from behind .is em- ,ployed, ethey appear.luminous .on via' dark field. When the image element-cis:adjusted ,inits inte-rmediate position nofinrageatall .is visible which .indicates:a.direction which is straight forward. i

In themodification. shown .in Figures =4 to .6 the movable image elementisjforme d by .twosegmentsd and "c, which are pivot-ably imounted onaxis mzand at 4311C]. cooperate in their common pivoting .movement.\Vhen .thesefsegments are rotated .to the right .an arrow 1 Fig. ,4,directed to theleftiappears and when they are rotated to the left anarrow 2, Fig. 6, directed to the rightappears, while in the intermediateposition 0 the segments the image shown indicates a direction which isstraight forward.

According to Figures 7 to 9 the stationary element of the image in thefront wall of the casing a is formed'by a hexagon h and closely behindthe same the movable parts f and g are arranged, which are provided witha horizontal central slot 3 and form together the movable hexagonalimage element. According to the position of these parts f and 9 an arrowdirected to the left 1 or the right 2 or a horizontal line 3 indicatinga straight forward direction are formed similarly as in Figures 1 to 3.

These examples show that by a combination of different image elements asto their shape and number different constructive modifications of theprinciple of the invention may be carried out. When the inven tion isapplied to a motor car an apparatus may be mounted on the front of thevehicle and another on its rear end without any changes in theconstruction of the car and both devices may be operated simultaneouslyby a single lever. i

In the above description the expressions left and right correspond tothe figures in the drawing; it is evident that the direction of motionis different for apparatus mounted on the front or rear end of thevehicle. It should be understood that the square, lozenge or hexagonalshapes given as examples in the specification may be replaced by otherequivalent shapes without deviation from the spirit of the invention.

Having now described my invention and in what manner the same is to beperformed I declare that what I claim is:

1. A direction indicator for vehicles comprising a casing having acut-out portion in the front wall thereof, said cut-out portionrepresenting by the contour lines portions representing by the contourlines portions of arrows for right and left direction indications; and amovable image elen'ient in said casing adapted to co-operate with saidoutout portion, said element in a central position relative to thecut-out portion being unindicative of a right or left turn and whenmoved to the right or left in the casing the cutout portion and theimage element forming a right or left arrow point by means of thecontour lines of the cut-out portion of the casing and the image elementto indicate a right or left turn.

2. A direction indicator for vehicles comprising a casing having acut-out portion in the front wall thereof, said cut-out portionrepresenting by the contour lines portions of arrows for right and leftdirection indica tions; and a plurality of image segments pivotallymounted in said casing cooperating 3. A direction indicator for vehiclesconiprising a casing having a cut-out portion in the front wall thereof,said cut-out portion representing by the contour lines portions ofarrows for right and left direction indica tions; anda pair of imagesegn'ients pivotally mounted in said casing cooperating with saidcut-out portion, said segments in a central position relative to thecut-out portion being unindicative of a right or left turn and whenrotated to the right or left in the casing the cut-out portion and thesegments forming a right or left arrow point by means of the contourlines of the cut-out portion of the casing'and the segments to indicatea right or left turn.

1. A direction indicator for vehicles comprising a casing having asquare cut-out portion in the front wall thereof, said cutout portionrepresenting by the contour lines portions of arrows for right and leftdirection indications; and a pair of image segments pivotally mounted insaid casing in opposite corners relative to the square cutout portionand cooperating with said cut-- out portion, said segments in a-centralposition relative to the cut-out portion being unindicative of a rightor left turn and when rotated to the right or left: in the casing thecut-out portion and the segments forming a right or left arrow point bymeans of the contour lines of the cut-out portion of the casing and thesegments to indicate a right or left turn.

In testimony whereof I afliX my signature.

AUGUSTIN MARSfK.

